Sharp CD-PC671H Service Manual page 27

24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
88 89 90 91 92 93 94 95 96 97 98 99 100
1
R779
ENA 2
R778
DO
1 VDD 3
R777
DI 4
R776
CE 5
R775
CLK 6
R774
LCK1
7
R773
LCK2
8
R772
CD DSP RWC 9
R771
RESET
10
X2
11
XL701
X1
12
4.19MHz
VPP
IC701 13
XT2
14
X0281AW
CD DSP WRQ
15
EM CONTROL R770
VDD 16
R769
OCOMPUTER
PCCL
17
R768
CD DSP COIN
18
R767
SQOUT
19
R766
CD DSP CQCK
20
R765
CD DSP RES
21
R764
FRF(DRF)
22
R763
SLD+
23
R762
EC/PLAY 28 SPEANA1 SLD– 24
TUN SM AVSS
29 25
Y-CON
T2 RUN SPEANA3
30 26
SPEANA2
27
28
R761 1K
29
30
43 42 41 40 39 38 37 36 35 34 33 32 31
+B
R752 R755
10K 10K
R756
R753
10K
10K
R757
R754
10K
10K
+B
KEYIN3
KEYIN2
KEYIN1
7
C706
1/50
C709
+B 0.022
C710
1K
220/10
1K
1K
1K
1K
1K
1K
1K
1K
C707
15P
(CH)
C708
18P
1K +B
1K
1K
1K
1K
1K
1K
1K
1K
+B
L702
100µH
D717
DS1SS133
C723
C711
0.1/50
0.01
PC671H
ONLY
RD21 RD23
RD22
820 1.5K
1.2K
SW723 SW724
SW722
TUNING TUNING
FF UP DOWN
RD10
RD11 RD12
820
1.2K 1.5K
SW711 SW712
REC MEMORY/
SW710
REW
PAUSE SET
RD03
1.5K
RD02
RD01
SW703
1.2K
820
CLOCK
SW701
+B
ON-STANDBY SW702
STATION
8
Figure 27 SCHEMATIC DIAGRAM (6/13)
R780
10K
R799
4.7K
SW_5V
IC704
KIA7042AP
D715
DS1SS133 RESET
UNSW_5V
Q704
1 3
C712
KRC102 M
2
3.3/50
2 3
1 2 3
R797
1 C722
100K C713
10/50
PC651H 0.022
ONLY
RD27 RD28
RD24 RD32 RD25 RD26
3.9K 6.8K
1.8K 5.6K 2.2K 3.3K
SW726 SW727
SW728 SW729
SW725
VOLUME VOLUME X-BASS/ EQUALI
PLAY
DEMO ZER
DOWN UP
RD13 RD14 RD15 RD16 RD17
1.8K 2.2K 3.3K 3.9K 6.8K
SW716
SW714 SW715 SW717 SW718
CD PTY/TI
SW713 TAPE
TUNER/ VIDEO
SEARCH
STOP BAND
RD04
1.8K
FW701
6
SW704
TIMER/
1
SLEEP
+B
9 10
– 27 –
+B
C716
R781
47/16
10K
C717
0.022
VSS VDD
1 8 1
PC671H
DATA
2
7 1
OE
ONLY
CLOCK Q11
3 6 1
R782 1K
LCK Q10
4 1 5
R793 1K
LED711 R783 1K
Q0 Q9
5 4 1
LED712 R792 1K
R784 1K
6 Q1 Q8 1 3
LED713 R791 1K
R785 1K
Q2 Q7
7 1 2
R786 1K
LED711~LED713
Q3 Q6
8 1 1
:SLI342YCJ
R787 1K
Q4 Q5
9
1 0
IC702
BU2092F LED716,LED717,LED721:SLI342YCJ
LED719,LED720:SLI342YCE
INPUT/OUTPUT
LED718:SLI325YC
EXPANDER
+B
+B
+B
+B
D720
DS1SS133
+B
RX701
REMOTE
SENSOR
C714
0.022
RD31
RD29 RD30 +B
68K
12K 22K
SW730
SW731 SW732
SW733
DIMMER
PHANTOM NORMAL
BY PASS
RD18 RD19 RD20
12K 22K 68K
SW719 SW720 SW721
EON ASPM DISPLAY
MODE
SW709
RD05 RD06 RD07 RD09
OPEN
2.2K 3.3K 3.9K 6.8K
/CLOSE
SW705 SW706 SW707 SW708
DISC 3 DISC
DISC 1 DISC 2
SKIP
11
CD-PC671H/651H
LED721
LED720
LED719
LED718
LED717
LED716
CNS12
RWC(DSP)
1 1
WRQ(DSP)
2 2
CO IN(DSP)
3 3
SQ OUT(DSP)
4 4
CQ CK(DSP)
5 5
RES(DSP)
6 6
DRF(ASP)
7 7
D_GND
8 8
SLD+
9 9
SLD-
10 10
PUIN SW
11 11
OPEN/CLOSE
12 12
DISC NO
13 13
UP/DOWN
14 14
PCCL
15 15
SWITCH PWB-A3
RS711 1.5K
IC703
BU2092F
INPUT/
OUTPUT
EXPANDER
18 17 16 15 14 13 12 11 10
1 2 3 4 5 6 7 8 9
12